air pollution free
71Estonia — /e stoh nee euh, e stohn yeuh/, n. a republic in N Europe, on the Baltic, S of the Gulf of Finland: an independent republic 1918 40; annexed by the Soviet Union 1940; regained independence 1991. 1,444,721; 17,413 sq. mi. (45,100 sq. km). Cap.:… …
72London congestion charge — At Old Street, street markings and a sign (inset) with the white on red C alert drivers to the charge. The sign displays the original operating hours for the scheme …
73Environmentalism — The historic Blue Marble photograph. Environmentalism is a concern for the planet as a whole. Environmentalism is a broad philosophy, ideology[1][2] …
74Czech Republic — a republic in central Europe: includes the regions of Bohemia, Moravia, and part of Silesia; formerly part of Czechoslovakia; independent since 1993. 10,318,958; 30,449 sq. mi. (78,864 sq. km). Cap.: Prague. * * * Czech Republic Introduction… …
75Greece — /grees/, n. 1. Ancient Greek, Hellas. Modern Greek, Ellas. a republic in S Europe at the S end of the Balkan Peninsula. 10,583,126; 50,147 sq. mi. (129,880 sq. km). Cap.: Athens. 2. a city in W New York. 16,177. * * * Greece Introduction Greece… …
76Ireland — Irelander, n. /uyeur leuhnd/, n. 1. John, 1838 1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888 1918. 2. Also called Emerald Isle. Latin, Hibernia. a large western island of the British …
77Concentrated Animal Feeding Operations — CAFO for cattle Sw …
78Mexico City — This article is about the capital of Mexico, coterminous with the Federal District. For other uses, see Mexico City (disambiguation). Mexico City   City   Ciudad de México City of Mexico …
79Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… …
80Cloud — For other uses, see Cloud (disambiguation). Cumulus cloudscape over Swifts Creek, Australia A cloud …
